ATI Dosage calculation lpn maternal newborn proctored assessment 3.2
Calculation
A nurse is preparing to administer iron dextran 75mg IM, to a client who is pregnant, has iron deficiency anemia and cannot tolerate oral iron supplements. Available as iron dextran 50 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero)
mL
Explanation & Rationale
Given: Prescribed dose: 75 mg of iron dextran Available concentration: 50 mg/mL Steps to solve: Determine the volume to be administered: Set up a proportion to solve for the unknown volume (X): 50 mg/mL = 75 mg/X mL Cross-multiplying gives us: 50 mg x X mL = 75 mg x 1 mL Simplifying: 50X = 75 Solving for X: X = 75 / 50 = 1.5 mL
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